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dsp73
3 years ago
12

How to reduce 9/10 ×8

Mathematics
1 answer:
Anastasy [175]3 years ago
4 0

Answer:

Multiply across. 72/10

Step-by-step explanation:

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the angle of elevation of the top of a building from a point 80 ft away from the building on level ground is 70° determine the b
MA_775_DIABLO [31]
Draw a triangle with shortest side on the ground (horiz.).  The length of this side is 80 feet.  Two angles touch the ground:  a right angle, and the 70 degree angle.
 
Then the height of the building is the 2nd shortest side.

The tangent function is the appropriate one to use here:
                       opp          h
tan 70 deg = -------- = ----------
                        adj        80 ft
                                                                h
Since tan 70 deg  = 2.75,          2.75 = -------
                                                              80 ft

so h = building height = (80 ft)(2.75) = 219.8 ft
6 0
3 years ago
The sum of prime number<br> less than x is 58<br> find an integer value for x
s344n2d4d5 [400]

Answer:

17

but it can be 18 too

cuz the q doesn't tell us that the value of x has to be a prime no.

Step-by-step explanation:

2+3+5+7+11+13+17=58

6 0
3 years ago
Please help giving BRANLIEST to the best answer THIS SHOULD BE EASY
solniwko [45]

Answer:

the size difference of figure two to figure one gets smaller

Step-by-step explanation:

its kinda obvious

5 0
3 years ago
Read 2 more answers
Carly bought a new house for $125,000. The value of the house appreciates approximately 3.5% each year. What will be the value o
mixer [17]
For 1 year, the house appreciates $4375 (3.5% of 125,000). Therefore after 10 years, $4375(10) = $43750. $125,000+ $43750 = $168,750.
6 0
3 years ago
Read 2 more answers
Christopher is analyzing a circle, y^2 + x^2 = 121, and a linear function g(x). Will they intersect?
Sav [38]
Circle: x^2+y^2=121=11^2 => circle with radius 11 and centred on origin.
g(x)=-2x+12   (from given table, find slope and y-intercept)
We can see from the graphics that g(x) will be almost tangent to the circle at (0,11), and that both intersection points will be at x>=11.
To show that this is the case, 
substitute g(x) into the circle
x^2+(-2x+12)^2=121
x^2+4x^2-2*2*12x+144-121=0
5x^2-48x+23=0
Solve using the quadratic formula,
x=(48 &pm; &radic; (48^2-4*5*23) )/10
=0.5058 or 9.0942
So both solutions are real and both have positive x-values.

7 0
3 years ago
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